Powering on help!

[aux9o]

I found a old computer of mine it is a hp. I can't get it to turn on I thought that the power button may be bad so I cut the wires going to it and jumped them off still nothing. I took a paper clip and put it in the green wire and a black wire on the power supply and the power supply comes on. Any suggestions on how to get this thing powered up?

[aux9o]

I also installed a new mother board to see that would fix it and nothing.

[John P. Myers]

Can you short the 2 pins on the motherboard the power switch plugs into with any luck?

[aux9o]

tried shorting them with no luck. I read that the cpu could be bad so I found one on ebay for 5.00 to see it that fix's it.

[aux9o]

replaced cpu. Any one have any ideas? It has 2.5 volt going to one of the pins on the MB that the power switch hooks up to. I have tried shorting it out, using another switch. I have tried new ram. The power supply test with I jump it with a paper clip unhooked from the MB. It just won't power on when connected to the MB. Please help!!

[shiva]

I'm no expert on anything but, I have several power supplies that will not power up a mb because the 5v leg is out. Some mb will run without the 5v leg but some will not. a PS tester will let you test all legs of the PS and if the 5v is out then that is probably the problem.

[Slicker]

Chances are that if it an HP, it probably came with a 250-300W power supply. They usually didn't put in any more than they needed. So, replacing it with a cheap 400W or 500W PSU (~$20-30 on sale) would probably do the trick. If you care to give some specs, chances are people have some parts they could donate to beef it up a little.

[shiva]

I had a problem with an older box when I added a new card to it. It would power up and run but would shut down in a short time. It took me a while but figured out the PS was getting hot and shutting down. A larger PS fixed it.

[aux9o]

Im gonna run to best buy and pick a power supply up. Ill keep yall updated.

[aux9o]

So now it powers one but then does nothing! This is going to be fun I see..